Bob-sled runner.



' J. H. ANDERSON.

BOB SLED RUNNER.

APPLICATION FILED MAR. 15, 1906.

997,226, Patented July 4, 1911.

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COLUMIIA PLANOORAPH 120., WASHINGTON n c J. H. ANDERSON. BOB SLEDRUNNER.

APPLIOATIOH FILED MAR.15, 190s.

Patented July 4, 1911.

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UNITED STATES PATENT OFFICE.

JOHN H. ANDERSON, OF ST. PAUL, MINNESOTA.

BOB-SLED RUNNER.

To all whom it may concern:

Be it known that I, JOHN H. ANDERSON, a citizen of the United States,residing at St. Paul, in the county of Ramsey and State of Minnesota,have invented a new and useful Bob-Sled Runner, of which the followingis a specification.

My invention relates to improvements in bobsled runners and has amongits objects to provide increased strength and inexpensive construction.

With this invention the runner is made out of a single, straight pieceof material,

to which is attached a nose piece and a sectional shoe to permit castingof part of the shoe out of metal and using sheet steel for theremainder. This construction of the shoe reduces its expense andproduces better results than if the entire shoe is made in one piece.

A further object is the production of a strong and rigid nose piece andof a simple and substantial coupling device between it and the pole androller.

7 In the accompanying drawings forming part of this specification,Figure 1 is a perspective view in detail of the forward end of a bobsledillustrating my invention, detail portions of the runners beingindicated by broken lines; Fig. 2 is an enlarged, detail, plan view ofthe roller, showing the coupling and a detail portion of the bracebetween the roller and the pole; Fig. 8 is a perspective view lookingtoward the inner side of the clamp used on the roller; Fig. 41 is asection of Fig. 2, taken on the line XX; Fig. 5 is a detail side view ofthe forward end of the runner; Fig. 6 is a perspective View of the nosepiece removed from the runner; Fig. 7 is a perspective view of therunner, the nose piece being detached, and Fig. 8 is a detail, plan viewof an alternative construction of the coupling on the roller.

In the drawings A represents the runner, which is made out of a singlepiece of material, such as wood having its grain substantially straightthroughout its length. Ordinary runners are steamed and bent to form thenose piece, but with my invention the expense and breakage incident tosuch bending is obviated and a stronger, more durable and neaterappearing runner is pro duced.

The forward end of the runner is cut on a curve to receive the shoe,which is made in two sections 2 and 3. The section 2 is Specification ofLetters Patent.

Application filed March 15, 1906.

Patented July 4, 1911. Serial No. 306,206.

straight throughout its length and may be made out of cast iron of anysuitable thickness. The section 3 extends forward from the end of thesection 2 and may be made of comparatively thin steel, which is lessexpensive than cast iron and produces equally as beneficial resultsbecause the wear is not as great as on section 2. On the top of theforward end of the runner is a nose piece .13, which in thickness isequal to that of the runner to form substantially and appear like asolid, bent runner. This nose piece may be made of metal and is hollowto form a groove 4:, into which a tongue 5 on the forward end of therunner projects. The nose piece, runner and sections of the shoe arefastened firmly together by means of bolts 6. A web 7 between the sides8 and 9 of the nose piece serve to strengthen the 0011- structionthereof.

0 represents the pole, which has the customary roller D provided withcouplings 10 upon its ends. These couplings are similar in constructionand each consists of a pin 11 formed on the end of a brace rod 12. Thebrace rods are fastened through the pole by means of bolts 13 and to theroller by a clamp plate 1 1, which is strapped to its face by bolts 15.Each brace rod is recessed into the roller. A rib 16 on the clamp plateimpinges against the pin to secure it in place. An eye 17 in the nosepiece receives the pin, where it is held by a washer and key 18. Thisconstruct-ion serves to brace the pole and roller and at the same timeforms a strong and rigid pivot connection between the roller and nosepiece on the runner, and, further, it is applicable to the hind runnerin connection with the reach. Where I use the term pole throughout thespecification and claims I mean to include the reach which is ordinarilyused on a complete bobsled.

In the alternative construction the coupling is shown constructed with aseparate brace and coupling pin, the brace 19 being formed with a flange20 and the pin 21 with a corresponding flange 22. These flanges arefastened to the roller by bolts 23. The coupling pin is recessed in theshoulder in the same manner as in the preferred construction.

In use the couplings may be easily disconnected by detaching the keys.

It is obvious that the details of construc tion may be changed andmodified without departing from the spirit of this invention, and I donot confine myself to the exact construction described.

Having described my invention, what I claim as new and desire to protectby Letters Patent, is

1. A device of the class set forth, comprising, in combination, astraight runner provided with an upcurved lower surface and a tonguedupper forward end, a hollow nose piece on said runner having a pair ofsubstantially plain vertical sides, between the lower edges of which thetongue on the forward end of said runner is received, said sides beingjoined by an upper transverse wall closing the upper portion of thespace between them, and means for securing said nose over said tongueleaving the adjacent opposite sides of said nose and runner lying in thesame vertical planes.

' 2.'A device of the class set forth, comprising, in combination, arunner, a hollow nose piece having two plain sides closed at andentirely open below their upper'ends, said sides overlapping the upperedge of said runner and their out-sides resting flush with the sidesofthe runner, a shoe on said runner and nose piece, a pole provided witha roller the latter having a slotted end, a combined coupling pin andbrace passing through said nose piece fastened to said pole and lying inthe slotted end of said roller,

and means for clamping said pin and brace to saidroller.

3. A device of the class set forth, comprising, in combination, arunner, a nose piece, means for fastening said nose piece on saidrunner, a pole provided with a roller having a slot in its end, a braceconnected with said pole, lying in the slot in said roller and providedwith a pin passing through, and forming a coupling with said nose piece,and a cleat for clamping said brace on said roller.

4. A device of the class set forth, comprising, in combination, a runnerA, a nose piece B provided with an eye 17, a shoe 2, means for fasteningsaid nose piece and shoeto said runner, a pole C provided with a rollerD having a longitudinal slot between its upper and lower sides, acoupling pin 11 passing through said slot in said nose piece and formedwith a brace 12, a clamp plate 14 over said coupling pin, means forsecuring said clamp plate to said roller, and means for securing saidbrace to said pole.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN H. ANDERSON.

Vitnesses:

ELSIE M. BOESEL, F. G. BRADBURY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,-

Washington, D. C.

